Translation and Regulation What are the Svedberg values for the subunits of the 70S ribosomes of E. colli? 40S and 30S 50S and 20S 50S and 30S 40S and 20S 40S and 30S 50S and 20S 50S and 30S 40S and 20S ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation Which of the following modified amino acid is used at the starting of most prokaryotic proteins? N-formylserine N-formylmethionine N-formylleucine N-formylalanine N-formylserine N-formylmethionine N-formylleucine N-formylalanine ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation What is the direct cause of cell death by diphtheria toxin? Induction of apoptosis Inactivation of a translational elongation factor Formation of an ion channel in the cell membrane None of these Induction of apoptosis Inactivation of a translational elongation factor Formation of an ion channel in the cell membrane None of these ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation What is the action of tetracycline in prokaryotes? It blocks peptidyl transferase reaction on ribosomes It blocks translocation reaction on ribosomes Not known with certainity It blocks the binding of amino-acyl tRNA to the A site of ribosomes It blocks peptidyl transferase reaction on ribosomes It blocks translocation reaction on ribosomes Not known with certainity It blocks the binding of amino-acyl tRNA to the A site of ribosomes ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation The nonsense codon(s) is/are UGA UAA all of these UAG UGA UAA all of these UAG ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation The interaction between the mRNA and tRNA determined the position of amino acid in a polypeptide sequence. This is called the adaptor hypothesis stagerivity promiscuity Wobble hypothesis adaptor hypothesis stagerivity promiscuity Wobble hypothesis ANSWER DOWNLOAD EXAMIANS APP
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